Submission #1244174

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;

#define pb         push_back

typedef long long ll;
const ll INF = 1000000000000000000ll;
const ll MOD = 1000000007ll;
const double EPS = 1e-8;

int dp[100005];

int main(void) {
	//ios_base::sync_with_stdio(false);
	//cin.tie(0);
	int n;
	cin >> n;

	vector<int> a;
	for(int i=0; i<n; i++){
		int t;
		cin >> t;
		a.pb(t);
	}

	dp[0] = 0;
	dp[1] = abs(a[1] - a[0]);
	for(int i=2; i<n; i++){
		dp[i] = min(dp[i-1] + abs(a[i] - a[i-1]), dp[i-2] + abs(a[i] - a[i-2]));
	}

	cout << dp[n-1] << endl;
	
	return 0;
}

Submission Info

Judge Result